Question

What are the fundamental physical quantities? Name any three fundamental physical quantities.

Answer 1

Fundamental quantities are physical quantities that are not dependent on other physical quantities. Fundamental quantities are a type of physical quantity. Physical quantities are classified into two parts.

Complete step by step solution:
In physics, we try to measure everything around us. While some quantities are easily measured and others are not. Physical quantities are classified.
Fundamental quantities
Derived quantities
Fundamental Quantities
Fundamental quantities are physical quantities that can be easily measured. For example, if we want to measure the time we use a clock. If we want to measure the length of some objects we use them to scale. These quantities which can be measured easily are known as fundamental quantities.
Examples for fundamental quantities:
Following are some of the fundamental quantities.
- Length
- Time
- Mass
- Electric current

Additional Information:
Derived Quantities:
The physical quantities which cannot be easily measured can be derived from the fundamental quantities are called derived quantities. They can only be computed. Many derived quantities are calculated in physical science.
Example for derived quantities:
Following are some of the Derived physical quantities
- Area
- Volume
- Density
- Volume
The fundamental quantities are measured and each of them has its units

Physical Quantity	Unit
Length	meter
Mass	Kilogram
Time	second
Temperature	kelvin
Electric current	ampere
Luminous Intensity	candela
Amount of substance	mole

Note: There are still two other quantities that are said to be fundamental quantities.
- Plane angle
- Solid angle
They are auxiliary units utilized in the SI framework however are treated as dimensionless. The auxiliary units are utilized for accommodation to separate between a genuinely dimensionless amount and a point, which are various estimations.